Staining apparatus



Filed Feb. 18, 1929 2 Sheets-Sheet 1 Feb. 2, 1932. S B HOWE 1,843,151

STAINING 'APPARATUS med Feb. 18, 1929 2 s11ee1s-sxwetl 2 Patdnt. Feb. 2, 149232 STATES PATsNr-oFl-lcs SEITE. B. HOWE, 0F BUFFALO, YOBK, ASBIGNOE T6 WEATHERBEST STAINED SEEEGLE COHPANY, INC., 0F NQBTH TGNAWNDA, NEW YOBR A COBPQBATIN OF BTAINIEG AIPABATUS Application filed February 18, 1929. Serial Re. 340,852.

My invention relates in general to a steining epperetus und in particular to en spperetus whereby wooden products and porticulerly shingles mcy be steined by hand 5 diping or otherwise.-

he principal object of my invention hes A been to rovide en appara-tus in which the ste-in she l be so thoroughly agitated and recirculated that the color pigments used there- 'lo in will be maintained in suspension, and various oils end vehicles lwhich may be used in such stein be prevented from becoming separated.

Another object has been to provide a device 15 in which the stein may be more thoroughly penetrated into the bers ot the wood, thus permittin the addition o certain ingredients whic will prolong the life of the stein and the Wooden products impregnated therezo with.

`Moreover my device is such thetlthe production of steined Wooden products will be increased, end more uniform results et tained.' z5 Moreover, my device, because of its temperature control, is more comfortable end agreeable to the workmen, which nids in increasing the production of the product.

The above objects und adventegesL have go been accomplished by the device shown in the accompanying drawings, of which: -f

Fig. l is o side elevation oi my complete device, showingA the dipping tenir in section end the hoster partly in section. Fig. 2 is e fregmentnry, plnn vievr of: the some with portions omitted for clesrness of illustrntion.

Fig. 3 is e sectional elevetion, teken on line 3 3 ot Fig. l. f

My device comprises n dipping rtenh 5 which is open et the top end into which the Wooden products moy be dipped by hund or otherwise. The dipping tenir, of course, conteins the stein end the level thereof is prelieo erebly meinteined et substantially the point side Well ot the tenir. The side .weil yof the tenir is extended to the floor whereby it'is.

6 which is indicated by e heed formed in the f this bottom is preferably conical in shepe7 es shown'. The ongle of the conical bottom may be mede to suit the hind of pigment used in the' stein, and is prcierebly of e degree substentially the some or slightly greater then the ongle of repose of the pigment, so that even if precipitation did occur, the igmen't would be deposited et the center or t e epex of the conical bottom.` rlhe bottom is sus# pended e sli ht distance shove the floor line end is provided et its npcsk with e central opening 8 in which e plug 9 is secured. This provides e clean-out opening. Passing through the side well ot the tenir 5 ond through the bottom "Z' is en outlet pipe l0 which is seeled et the point Where' it posses through the bottom 7 so that there con be no leakage of the stein. The pipe is provided et its inner end with en elbow ll. The pipe is of such s. length thet the tree end'of the elbovv is at the center of the'bottor'n end this end is projected downwerdly so that it lies neer the open 'of the bottoni. The outer end of the outlet pipe is provided with o union connection 12 for ettnchnient to' other perte of the device to be hereineter described. The tenir is also provided `with en inlet connection which is prefernbl in the forno of s street clbov.Y l5. This e how is screwed into dsnges 16 secured one to the inside end the other to the outside Well of: the tenir: This elbow hes its outlet end errenrfed so to project the new of stein in substantially e tegentiel direction, end the exis or its outlet end is inclined sli htly in s. downwerd direction, so that s. elicnl circulation of the liquid will be produced. Connected to the outer denge i6 is s union 17 which is connected to other perte oi the sppcretus to be hereinafter described.

ln order to produce circulation oi the stein through the tenir, l use s. centriiu gel pump 20 of stenderd menufecture end drive the pump preferably by ineens of s direct connected electric motor 2l. Forcleerns of illustretion the pump 20 end motor 2l have been omitted in Fig. 2. The union 12 secured to the outer end of the outlet pipe l0 oi the dippin tenir is connected to the suction side 22 E of t e pump 20 through s hoster 23. This and an outer jacket thus providing a steam space 26. A steam inlet pipe 27 is provided for the heater, and a steam outlet pipe 28 is also provided. The steam outlet fpipe is, of course, connected with a suitable steam trap 29. An inlet pipe is provided which comprises a section 30 and a section 32' larger in diameter than the section 30. vA valve 31y is connected in this pipe. The enlarged section 32 of the pipe is connected to a crm-fitting `33 which 1s carried by the outlet pipe 34 of the pump 20. Carried bythe connection of the cross-fitting 33 which is opposite the pipe 32 is a temperature controlling device 35, having its control element 36 located within the enlarged section 32 of the inlet pipe, so that it will be controlled by the temperature ofthe Huid being delivered tothe dipping tank. At the outer end of the temperature controlling device is a steam valve 37. which is controlled bv the actuation of the regulator.v One side of this control valve is connected bv means of piping 38 to the steam inlet 27 of the heater whereby the quantity of steam.I delivered to the heater will be controlled in accordance with the desired predetermined temperature of the staining liquid. Connected also to the.

valve 37 is the steam supply pipe'39 which pay have a steam strainer 40 connected in the me. able source of steam supply. This connection may be either a permanent pipe or a lexi` ble steam hose, and a valve 31 is connected therein. f l

Connected to the upper end of the crossitting/33 is a stand pipe-43 which extends up to a point above the level of the stain in the tank 6. This pipe is preferably formed with a horizontal portion 44 having an elbow 45 at its extreme outer end and being provided with a valve 46. The pu pipe is to empty the stain from the tank when desired. l A

Arranged in the conical bottom? of thetank and preferably just above the outlet pipe 10 is a strainer 47 which is preferably of a suitable wire mesh, andserves to prevent foreign matter, largely chips from wooden products from being drawn into the centrifugal pump 20.

It is obvious' that when the pump is operated, the stain will be drawn from the lower- A steam connection 42 leads to a suitof this stand.

of the stain prevents precipitation and where the stain is composed of various oils' and vehicles, such thorough agitation will also preventthe oils from becoming separated. As the Huid passes over the element 36 of the regulating device, its temperature will serve to control such element which will cause the regulator to permit the required amount of steam to pass through the heater to bring the temperatu're up to and maintain it at the predetermined degree. "By heating the stain, its viscosity is lowered, and not only is production increased thereby, since the stain will readily drain from the wooden roducts, but the drying action is accelerate and a more uniformly coated product results, since streaked effects are eliminated.

Obviously, some modifications of the details herein shown and described mayl be made without departing from the spirit of my invention or the -sco e of the appended claim, and I do not, there ore, wish to be limited to the exact embodiment herein shown and described, the form shown being'vmerely a preferred embodiment thereof. i 'l Having thus described my invention, what Iclaimis: l Y

The combination with a staining ap aratus of a dipping tank formed with as allow, conically-shaped bottom, the lower portion thereof providing a sump, a fixed liquld mlet secured to the tank below the middle thereof and discharging close to its inner wall, such inlet being disposed in a tan ntial .direction and being tipped downwar y, a screen arliquld outlet arranged in the conically shaped bottom and havi a downwardl intlng elbow, such elbow ing arrangedv a ve the sump.

ranged between the inlet and the sump and a In testimony whereof, I have hereunto 4' si edm name.

gn y' SMITH B. HOWE.

most point of the conical bottom 7 where any i precipitation which may occur will be drawn into the outlet elbow 11 and conducted through the heater 23 tothe suction side of temperature regulator, a1 .d back to the dipping` tank where it is projected from the inlet elbow 15 in a tangential and slightly downo ward direction. Such continuous circulation 

